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|CAS No.:||122-88-3||Purity:||Min 98%|
naa auxin hormone,
plant growth regulators auxin
Chemical Name: Sodium 4-chlorophenoxyacetate;
acetic acid, (p-chlorophenoxy)-, sodium salt
Chemical Formula: C8H7ClO3
Molecular Weight: 208.6
Physical and Chemical Properties
White crystal. No special smell, melting point 157-158(acid), vapor pressure 0.247 pa at 25℃. Stable in room temperature.
|Test Items||Specification||Test Results|
|Appearance||White powder||White powder|
|Loss on drying||≤1.0%||0.22%|
|Residue on ignition||≤0.1%||<0.05%|
|Conclusion||Up to grade|
Mode of action
4-CPA can be absorbed by plant root, stem, leaf, flower, fruit. The biological activity duration is long.
Its main functions are as follow:
To form seedless fruits.
To promote fruit set and fruit enlargement;
Solubility: Sparingly soluble in water. Readily soluble in most organic solvents. 4-CPA sodium salt is soluble in water.
Stability: It is stable at elevated temperatures (54 deg C) and on exposure to metals, but degrades (30% loss in 24 hours) on exposure to sunlight.
As plant growth regulator, it can be absorbed by plant via root, stem, leaf, bloom
1. 4-Chlorophenoxyacetic acid ( 4-CPA ) is used to prevent abscission of bloom and fruit, inhibit rooting of beans,Single use: 10-30 mg/L, spray flower or deal with fruit, promote fruit setting.
promote fruit set, induce formation of seedless fruit, through flower spraying.
2.4-Chlorophenoxyacetic acid ( 4-CPA ) can be used for ripening and fruit thinning.
3. 4-Chlorophenoxyacetic acid ( 4-CPA ) also has herbicidal effect at high dosageApplication
4. 4-Chlorophenoxyacetic acid ( 4-CPA )performs better when used in combination with 0.1% monopotassium phosphate.
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